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Merck

A2251

Acetyl-β-methylcholine chloride

≥98% (TLC), powder

Sinónimos:

(2-Acetoxypropyl)trimethylammonium chloride, Methacholine chloride

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Fórmula lineal:
CH3COOCH(CH3)CH2N(Cl)(CH3)3
Número CAS:
Peso molecular:
195.69
UNSPSC Code:
12352211
NACRES:
NA.25
PubChem Substance ID:
EC Number:
200-537-2
Beilstein/REAXYS Number:
4162373
MDL number:
Assay:
≥98% (TLC)
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InChI

1S/C8H18NO2.ClH/c1-7(11-8(2)10)6-9(3,4)5;/h7H,6H2,1-5H3;1H/q+1;/p-1

InChI key

JHPHVAVFUYTVCL-UHFFFAOYSA-M

SMILES string

[Cl-].CC(C[N+](C)(C)C)OC(C)=O

assay

≥98% (TLC)

form

powder

mp

171-173 °C (lit.)

solubility

H2O: 50 mg/mL (solutions undergo rapid, pH-dependent decomposition at pH > 6.)

storage temp.

−20°C

Quality Level

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Application

Acetyl-β-methylcholine (methacholine), an analog of acetylcholine, is use as a receptor agonist to study processes such as airway hyperresponsiveness associated with asthma.

Biochem/physiol Actions

Metabolically stable analog of acetylcholine; muscarinic agonist. Its ability to constrict airway smooth muscle is used to assess bronchial reactivity in the laboratory and clinically.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Bing Han et al.
PloS one, 6(2), e17236-e17236 (2011-03-02)
The great advances of nanomaterials have brought out broad important applications, but their possible nanotoxicity and risks have not been fully understood. It is confirmed that exposure of environmental particulate matter (PM), especially ultrafine PM, are responsible for many lung
J G Martin et al.
Canadian journal of physiology and pharmacology, 70(4), 597-601 (1992-04-01)
Airway responsiveness to methacholine and other bronchoconstrictors is highly variable within and among species. The aim of the experiments in this report was to evaluate the importance of the quantity of airway smooth muscle as a determinant of intra- and
Mina Youssef et al.
The Journal of pharmacology and experimental therapeutics, 373(3), 476-487 (2020-04-11)
Zona pellucida binding protein 2 (Zpbp2) and ORMDL sphingolipid biosynthesis regulator 3 (Ormdl3), mapped downstream of Zpbp2, were identified as two genes associated with airway hyper-responsiveness (AHR). Ormdl3 gene product has been shown to regulate the biosynthesis of ceramides. Allergic
Martijn C Nawijn et al.
PloS one, 8(2), e55307-e55307 (2013-02-09)
Asthma is a chronic inflammatory disease of the airways characterized by variable airway obstruction and airway hyperresponsiveness (AHR). The T regulatory (Treg) cell subset is critically important for the regulation of immune responses. Adoptive transfer of Treg cells has been
Roy H E Cloots et al.
American journal of physiology. Lung cellular and molecular physiology, 305(5), L364-L376 (2013-07-09)
Asthma is a chronic inflammatory disease of the small airways, with airway hyperresponsiveness (AHR) and inflammation as hallmarks. Recent studies suggest a role for arginase in asthma pathogenesis, possibly because arginine is the substrate for both arginase and NO synthase

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